Don't know if you guys heard about this but in the gulf an american AAA gunner opened fire on a british chinhook (stupid prick)The chopper pilot was screaming over the radio trying to make him stop somehow.
Eventually the fire just got too heavy and the helicopter was forced down where it made an emergency landing. The pilot furious got out,marched up to the officer in charge of the AAA battery, absolutely battered then went back tohis helicopter and flew off.

It may be a myth and a sea story, but it certainly *could* have happened.
Different situation, similar outcome: during Operation Market-Garden, an American P-51 pilot got shot down by a German flak battery. He bailed out, "borrowed" a platoon of the 101st, and took out the flak battery that shot him down.